Sulfur dioxide (SO2) may be oxidized to sulfur trioxide (SO3), which has many uses including the production of sulfuric acid and sulfonation of detergents. In a sulfonation plant, a flue gas stream having a composition of 0.10 SO2, 0.09 O2 and 0.81 N2 are to be passed through a two-stage converter system. The one-pass conversion of SO2 to SO3 in the first stage is 0.40 and that in the second stage is 0.60. To boost the conversion effectiveness, some of the total exit gases is recycled back to the converter, while 5% of the recycle gas stream is being purged to prevent accumulation of nitrogen in the system. What is the composition of the final exit gases and the overall fractional conversion when the stages are in parallel, with 50% of the gross exit gases recycled back and mixed with the raw flue gas before splitting equally as feed to both stages?
Sulfur dioxide (SO2) may be oxidized to sulfur trioxide (SO3), which has many uses including the production of sulfuric acid and sulfonation of detergents. In a sulfonation plant, a flue gas stream having a composition of 0.10 SO2, 0.09 O2 and 0.81 N2 are to be passed through a two-stage converter system. The one-pass conversion of SO2 to SO3 in the first stage is 0.40 and that in the second stage is 0.60.
To boost the conversion effectiveness, some of the total exit gases is recycled back to the converter, while 5% of the recycle gas stream is being purged to prevent accumulation of nitrogen in the system. What is the composition of the final exit gases and the overall fractional conversion when the stages are in parallel, with 50% of the gross exit gases recycled back and mixed with the raw flue gas before splitting equally as feed to both stages?
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